Add heat_stack_owner role for heat trusts usage
Add heat_stack_owner role for heat trusts usage

Heat supports deferred operations via keystone trusts,
and we'd like to make that the default.  To do this, we
require a new role, which is the default role specified
in heat.conf trusts_delegated_roles, heat_stack_owner.

Add the role to the admin/demo users so they can create
heat stacks when we make deferred_auth_method=trusts the
default.

Change-Id: Idfc70ee89428c23f5965e643486ff2ad9566471c
Related-Bug: #1286157

bq-xiao/devstack,LoHChina/devstack,TwinkleChawla/devstack,bljgaurav/openstack-test,neerja28/Devstack_GlusterFS,samgoon/devstack,wenhuizhang/devstack,herrsechs/devstack,bigswitch/devstack,promptworks/devstack,CloudServer/devstack,olivierlemasle/devstack,Juniper/devstack,NaokiMiyata/devstack,thomasem/devstack,ozamiatin/devstack,sequenceiq/devstack,andrewrothstein/devstack,Mahito/devstack,nuxeh/devstack,costingalan/devstack,dirkmueller/devstack,parul24/devstack,noironetworks/devstack,thomasem/devstack,atulpatil301/devstack,bigswitch/devstack,HPCHub/devstack,group-policy/devstack,andrewrothstein/devstack,innodee/openstackk,eshnil2000/devstack,mssumanth/devstack,dtroyer/devstack,kplus/devstack-moonshot,rushiagr/devstack,eharney/devstack,dtroyer/devstack,mssumanth/devstack,costingalan/devstack,HPCHub/devstack,bswartz/devstack,avvocatodemarchis/devstack,pacinete/devstack,vsham20/devstack,upadhyay-prashant/devstack,bq-xiao/devstack,eharney/devstack,parul24/devstack,liuquansheng47/devstack,LoHChina/devstack,richliu/devstack,nawawi/openstack,vishnugonela/devstack,herrsechs/devstack,j4/devstack,prithivm/branch01,vsham20/devstack,richliu/devstack,bljgaurav/openstack-test,neerja28/Devstack_GlusterFS,openstack-dev/devstack,ozamiatin/devstack,atulpatil301/devstack,avvocatodemarchis/devstack,j4/devstack,jamielennox/devstack,pczerkas/devstack,JioCloud/devstack,kplus/devstack-moonshot,liuquansheng47/devstack,sc68cal/devstack,bswartz/devstack,affo/devstack,williamthegrey/devstack,Mahito/devstack,srics/devstack,nawawi/openstack,vishnugonela/devstack,prithivm/branch01,mmasaki/devstack,wenhuizhang/devstack,rushiagr/devstack,sequenceiq/devstack,flavio-fernandes/devstack,affo/devstack,group-policy/devstack,dirkmueller/devstack,upadhyay-prashant/devstack,TwinkleChawla/devstack,pombredanne/devstack,samgoon/devstack,mc2014/devstack,openstack-dev/devstack,virtualopensystems/devstack,BSJAIN92/OpenStack,nuxeh/devstack,tianweizhang/devstack,pacinete/devstack,flavio-fernandes/devstack,tianweizhang/devstack,promptworks/devstack,noironetworks/devstack,pczerkas/devstack,pombredanne/devstack,varunarya10/devstack,varunarya10/devstack,NaokiMiyata/devstack,mc2014/devstack,olivierlemasle/devstack,mmasaki/devstack,CloudServer/devstack,sc68cal/devstack,BSJAIN92/OpenStack